Sleeve-valve engine



June 17, 1930. F. E. LONAS SLEEVE VALVE ENGINE Filed Sept. 3, 1925 3 Sheets-Sheet l INVENTOR Han/7' 1. 07145 June 17, 1930. F. E. LONAS 1,763,664

SLEEVE VALVE ENGINE Filed Sept. 3, 1925 3 Sheets-Sheet 2 INVENTOR 547271 5. low

ATTORNE Filed Sept. 1925 5 Sheets-Sheet 3 w mm QBY :0 ATl' IIIIIIIIIIIIIIIIIIIIIIIIIII ORNEZ Patented June 17, 1930 UNITED STATES 3mm: a. norms, on NEW Your, 1:. Y.

SLEEVE-VALVE ENGINE Application filed September s, 1925. sum 1''... 54,202.

This invention relates to internal combustion engines of the sleeve valve type; and the objectv of the invention is to provide an improved cylinder and cylinder head con- 5 struction for engines of the class specified which is so constructed as to simplify the manufacture of the several parts, to provide for the quick removalof the working parts or parts subject to wear and the replacement thereof; a further object being to provide-an engine of the class specified which is so constructed as'to produce the most practical and eificient cooling system for the cylinder and cylinder head as well as both sides of the sleeve valves and around the intake and exhaust ports as well as in cooling the base of the cylinder structure and the provision of improved means for transmitting the cooling water from the c linder structure to the head of the cylinder w ereby all of the heated parts of the engine may be efi'ectively cooled, and further whereby a direct and continuous flow of coolin water is provided around and through t e separate cylinder structures and into the head adjacent each cylinder structure; a further object being to provide a novel method of coupling a radiator in connection with the cylinder structure and for transmitting the cooling water from the radiator to the water manifolds and passages of the engine and from the engine to said radiator; and with these and other objects in view, the invention consists in an engine of the class and for the purpose specified which is simple in construction and operation and efficient in use and which is constructed as hereinafter described and claimed.

The invention is'fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which z---- Fig. 1 is a transverse sectional view through an engine made accordingly to my invention I illustrating the principal novel features of construction to be herein claimed and with parts of the construction broken away.

Fig. 2 is a partial, longitudinal sectional view through a number of the cylinders and I showing the radiator mounting in connection therewith; and, v

Fig. 3 is a partial section on the line 3-3 of Fig. 2.

In internal combustion engines of the sleeve valve type, it is important to provide effective and efficient cooling means for the cylinder and that part of the cylinder structure in connection with which the reciprocating sleeve valve functions and to provide for the cooling of the inner and outer walls of the cylinder structure in connection with which the valve operates in addition to the cooling of the intake and exhaust manifolds. It is also important to provide fon a quick discharge or passage of the "coolin water through the heated parts directly 1nto the head and thus into the radiator, and my improved engine design is constructed to accomplish these desired results. In addition, I provide means for cooling the base of the cylinder structure or that part of the cylinder structure adjacent the crank case, thus providing a continuous flow of water into and throughout the base of the cylinders of the engine with continuous passages upwardly and around each cylinder of the engine and thus into a continuous passage in the cylinder headand directly into the radiator.

. In the accompanying drawing, I have shown for the purpose of illustrating one method of carrying my invention into efiect an internal combustion engine of the sleeve valve type comprising a main cylinder structure 10, the base 11 of which is enlarged as seen in Fig. 1 of the drawing. The crank case portion 12 of the base 11, and with which the crank case 13 is coup1ed, is fashioned to form dome-shaped portions 14 within which the cranks 15 of the crank-shaft 16 rotate and the dome-shaped portions 14: are waterextends between the separate cylinders as well as between the dome portions 14 as clearly seen in Figs. 2 and 3 of the drawing.

In Figs. 2 and 3, I have shown at 18, a radiator for cooling the circulating water and the base of this radiator is coupled direct- 1y with the base of the cylinder structure 10 by pipe extensions 19, see Fig. 3, which couple with pipe-like extensions on the cylinder structure and disposed at the op osite sides thereof as clearly seen, thus provi ing for the flow of water into the manifold 17 at both sides of the cylinder structure and continuously through the base 11 of the cylinder structure as will be apparent. The pipes 19 are bolted or otherwise secured to the cylinder structure as seen at 21, and suitable packings 22 are employed to effect a seal. It will .be noted that the mounting of the radiator 18 in connection with the cylinder structure is direct. In other words, the radiator is supported on and by the cylinder structure.

Extending upwardly from the base portion 11-12 of the cylinder structure is an outer wall member 23 and formed integrally therewith is an inner wall member 24 spaced from the outer wall member as clearly seen and between which wall'members and adjacent the upper end of the cylinder structure are formed intake manifolds 25 and exhaust manifolds 26 disposed at the opposite sides of each cylinder, and the intake ports 25 and exhaust ports 26 open through the cylinder wall 24.

Mounted upon the base portion 1112 of the cylinder and upon and within the cylinder Wall 24 is a cylinder proper 27 detachably mounted with respect to the cylinder structure and in the form of a tube having a flange 28 at the lower portion thereof cooperating with a seat 29 provided with suitable packing 30 and the central portion of the cylinder 27 is enlarged to provide a tubular part 31 encircling and spaced from the cylinder 27 to form a passage 32 therebetween, the lower end of the tubular part 31 seating upon the cylinder wall 24 as seen at 33, and a suitable packing 34 being provided. The cylinder 27 and the sleeve part 31 thereof are provided with intake ports 35 which register with the ports 25 and above the ports 35 with exhaust ports 36 which register with the ports 26" the ports 36 opening into the comustion chamber 37 at the top portion of the enlarged part of the cylinder 27.

The cylinder 27 or the sleeve portion 31 thereof extends inwardly and upwardly in a contracted sleeve part 38 Within which is formed a water passage 39 in communication with the passage 32 as clearly seen in Fig. 1 of the drawing.

The sleeve valve 40 is mounted to reciprocate on the reduced tubular extension 38 and the lower end portion of the valve is enlarged and tubular in form and operates upon the outer wall of the enlarged sleeve portion 31 of the cylinder proper 27 In practice, I provide a removable cylinder liner 41 which is mounted u on the outer face of the sleeve valve 40 and held in place by a sleeve nut 42 which also operates to hold the cylinder 27 in position. The liner '41 is ported to register with the intake ports 2535, 2636 as clearly seen in Fig. 1 of the drawing. The sleeve valve 40 is provided on opposite sides with ports 43 adapted to registed with both intake and exhaust ports in the reciprocatory movement thereof. The valve is operated through the usual overhead crank shaft construction 44 which is old in the art and forms no part of this invention, the crank shaft construction or valve operating means being such as to move the ports 43 into engagement with the intake ports and also into engagement with the exhaust orts and into neutral positions at the space etween ports as seen in Fig. 1 of the drawing in the cycle of operation of the engine. It is preferred that the usual packing or sealing devices be employed adjacent the intake and exhaust ports and on the sleeve 31 of the cylinder 27 to effect a seal to prevent the incoming gases and exhaust gases from escaping around the sleeve valve.

The piston 45 operates within the cylinder proper 27 as will be apparent and is actuated y a connecting rod 45 coupled with one of the cranks 15 of the crank shaft 16. It will be noted that the cooling water from the base of the cylinder 10 from the water jacket 17 passes upwardly around the cylinder proper 27 on the inner sides of the sleeve extension 31 thereof and on the outer side of the cylinder wall 24 and around both the intake ports and the exhaust ports and upwardly into the removable cylinder head 46 through the passage 39 and through passages 47 at the outer side portions of the cylinder structure. The passages 47 are formed by pipes 48 threaded into the upper ends of the cy inder structure 10 adjacent the bearings for the valve operating cranks 44 as seen in Figs. 1 and 3 of the drawing, the head 46 having cylindrical portions 49 through which the pipes 48 pass. The upper ends of the pipes are provided with ports 50 which register with other ports or passages 51 in the cylinder head, the latter ports opening into the chamber 52 within the sleeve head while the passages 39 also open into the chamber 52 through ports 53 as seen in Figs. 1 and 2 of the drawing. The pipes 48 are of bolt-like construction and extend through recessed portions 54 at the opposite sides of. the head 46 and are threaded to receive nuts 55 which hold the cylinder head 46 in position. The cylinder head is provided with a depending outer wall 56 which rests upon and interlocks with the outer wall 23 of the cylinder structure 10, and suitable packing 57 is rovided between the adjacent faces to provi e a seal.

A spark plug 58 is mounted in the reduced extension 38 of the cylinder proper 27' to extend into the combustion chamber 37 and the terminal 59 of the s ark plug passes upwardly through a cylin rical part 60 within the I of thedrawingj other and is interruptedonlyby the cylinder portions 60. At the front end of the engine the head extends in a tubular part 62 with which a tubular extension 63 on the ra- 'diator'18 is' directly coupledas seen in Fig. 2. of the drawing. Fromtlie'ioi'egoing, it will beapparent that the cooling water pass- 'ingupwardly around the cylinders and the walls enclosing the sleeve valve and through the passages 39 and passages 4;; into the chamber, 52 of the cplinder head raw 1111 pass directly into the top of the radiator 18 and downwardly theret-hrough and again into the cylinder structure through the passages 20 as seen in Fig. 3 of the drawing, thus providing a continuous circulation of the cooling water through the entire structure of the en gine and directly past each, and :every' cylinder structure of the engine.

It will be. understood that while I have described my invention as with, reference to one cylinder that this description applies to the multiple cylinder structure as partially illustrated in FigQ' ofjthe drawing,'like refercnces applying to eachof the cylinder units employed.' It will also be understood that while I have shown, for 'the'purpose of illustration,a specific form of, cylinder construc-, tion, that my invention is not necessarily limited in thisrespectfa's the distinctive features of myinvention may be applied to cylinder structures of any kind or class without departing from the spirit of my invention and other changes in and modifications of the structure herein shown and described may be made within the scope of the appendedclaims withoutdeparting from the spirit of my invention or sacrificing its advantages.

. Having" fully, described my invention, what I claimas new and desireto secure by. Letters-Patent, is 5- 1. Asleeve valveengine comprising a cylinder structure, means for dividing the cylinder structure into a cylinder proper, a sleeve valve receiving portion encircling the cylinder proper and an outer alL-aIWaterjacket at the base of the cylinderstructure below the lowermost point of pistontravel meansfor circulating water from. said jacketaup wardly around the cylinder propenwithin and around-the valve receiving portion ofthe cylinder structureand into a cylinder head h u h n epe dent. P sa e inder structure, means for dividing the cy1 inder structure. in to a, cyl1nder. proper,-al sleeve valve. receiv ng portion enc rcllng the cylinder properandf an outer wall, a water jacket. atthe baseiof the cylinder structure.

below the'lowermost point of piston travel,

means for circulating water from said jacketupwardly around the cylinder proper within and around the valve receiving port-ion of sleeve valve receiving portion encircling the cylinder proper and an outer wall, a water jacket at the base of the cylinder structure below the lowermost point oi piston travel, means for circulating water from said jacket upwardly around the cylinder proper, within and around the valve receiving portion of the cylinder structure and into' a cylinder head through independent passages, said cylinder head being; removable from the cylinder structurea d being provided with a continuous passage, and means for coupling a radiator directly with the. cylinder structure and with thecylinder head and 'for placing the radiatorin communication with the water jacket of the cylinder structure and the passage in the cylinder head. g

4. An internal combustion engine, the cylinder structure of which is fashioned to provide water passages through which cooling in'the cylinder, a removable cylinder head having a water chamber therein, and means involving tubular members for placing the water passages of the cylinder structure in water maybe circulated around the cylinder and intake and exhaustigports and manifolds,

of the cylinder, aremovablecylinder head.

having a water chamber therein, and'means water maybe circulated around the cylinder and intake and exhaust ports and manifolds involving tubular members for placing the water passages of the cylinder structure in communication with the water chamber ofthe cylinder head, said tubular members providing means for coupling the head with the cylinder structure. 1

6. In an internal combustion engine of the class described, a cylinder structure compris-- ing an'zenlarged upper endportion having integral inner and outer walls: mounted :in.

spacedrelation; intake and exhaust manifolds integral with the innerand-outerl wallsand in. Y 2.. A sleeve valve engine comprising a.cyl-.,

spaced relation toformwater jacketsaround.

the major portion thereof, the lower portion;

of the cylinder structurebeing enlarged and comprls ngan outer wall and an inner wall in spacedrelation withthe outer'wall, the

Ito

rod coupled therewith are free to travel and the intermediate portion of the cylinder structure comprising a single outer wall, the

inner and outer walls of the lower portion of 5 the cylinder structure forming a water jacket therebetween, means involving a cylinder 19 inder structure and the inner wall of the upper part thereof to place the upper and lower Water jackets in communication, and the cyl' inder proper being fashioned to form within the inner wall of the upper part'of the cylinder structure, a water acket which extends upwardly through the c linder proper.

7. In an internal com ustion engine of the water cooled type and having a water jacket, a cylinder head detachably mounted in connection with the cylinder structure and proing water may pass from the water jacket through said tubular members and into the.

chamber of said head.

8. In an internal combustion engine of the water cooled type and having a water jacket, a cylinder head detachably mounted in connection with the cylinder structure and provided with a continuous water circulating P chamber therein, means involving tubular members for placing the chamber of the cylinderhead in communication with the water jacket of the cylinder whereby the circulating water may pass from the water jacket through said tubular members and into the chamber of said head, and said tubular members forming means whereby the cylinder head may be coupled with the cylinder structure.

9. In an internal combustion engine of the water cooled type and having a water jacket, a cylinder head detachably mounted in connection with the cylinder structure and provided with a continuous water circulating chamber therein, means involving tubular members for placing the chamber of the cylinder head in communication with the water jacket of the cylinder whereby the circulating water may pass from the water jacket through said tubular members and into the chamber of said head,.said tubular members forming means whereby the cylinder head may be coupled with the cylinder structure, and means within the cylinder head whereby the terminal of the spark plug may extend therethrough.

10. An internal combustion engine, the crank case portion of the cylinder structure. of which is provided with a water jacket extending continuously from one end of the cylinder vided with a continuous water circulating jacket of the cylinder whereby the circulat chamber of the cylinder head and a radiator coupled with the cylinder structure and head, and means for placing the radiator in communication with the chamber of the cylinder head and with said water jacket.

11. An internal combustion engine, the

' crank case portion of the cylinder structure of whichis provided with a water jacket extending continuously from one end of the cylinder structure to the other, a cylinder head detachably mounted in connection with. the cylinder structure and provided with a water chamber, means for circulating the water upwardly through the cylinder struc-v ture from the first named water jacket and into the chamber of the cylinder head and a radiator coupled with the cylinder structure and head, and means for placing the radiator in communication with the chamber of the cylinder head and with said water jacket, t e last named communication being formed by independent passages positioned at the opposite sides of the cylinder structure.

12. An internal combustion engine, the cylinder structure of which is provided with an integral crank case portion, said crank case ortion having crank shaft bearings, a water acket in said crank case and continuous with the water jacket of the cylinder structure, and means whereby the cooling water of said water jacket may be exposed to said bearings.

13. In an engine comprising a cylinder structure having an integral crank case portion, a detachable cylinder head and an inserted cylinder proper, said crank case portion, cylinder structure and head having water Jackets, the watcr jackets of the cylinder structure and crank case portion being continuous and means for placing the water jacket of the cylinder head in communication, with the water jacket of the cylinder structure.

14. In an engine comprising a cylinder structure having an inte ral crank case portion, a detachable cylinder head and an inserted cylinder proper, said crank case portion, cylinder structure and head having water Jackets, the water jackets of the cylinder structure and crank case portion being continuous, and means for placing the water jacket of the cylinder head in communication with the water jacket of the cylinder structure, and the intake and exhaust manifolds of the engine bein imbedded in the water jacket of the cylin er structure and substanserted cylinder proper and a sleeve valve between the cylinder proper and said cylinder structure, a continuous water jacket in said cylinder structure and the crank case portion thereof, a water jacket in said head, and means for placing the water jacket of the cylinder head in communication with the water jacket 'of the cylinder structure, through independent passages from watercirculated around the inner and outer sides of the sleeve valve of the engine.

16. A sleeve valve engine comprising a cylinder structure having an integral crank case portion and detachable cylinder head, an inserted cylinder proper and a sleeve Valve between the cylinder proper and said cylinder structure, a continuous water jacket in said cylinder structure and the crank case portion thereof, a water jacket in said head, means for placing the water jacket of the cylinder head in communication with the water jacket 7 of the cylinder structure, through independent passages from water circulated around the inner and outer sides of the sleeve valve of the engine, and the intake and exhaust manifolds of the engine being imbedded in the water jacket of the cylinder structure in spaced relation to expose substantially the entire circumference of said manifolds to the coolin water.

17. n an engine of the vertical type, a cylinder structure, the lower end portion of which is provided with a water jacket positioned below the lowermost point of piston travel and extending to the crank case of the engine. means for admitting cooling water directly into the lower end of the water jacket and upwardly around-the entire circumference of the lower end of the cylinder proper and upwardly around the upper end of the.

cylinder structure, the intake and exhaust manifolds and the ports for said manifolds and directly into the cylinder head through passages.

18. An internal combustion engine of the type wherein the cylinder structure includes an integral crank case portion arranged below the head of the cylinder structure and the crank case portion of the cylinder structure being provided with a water jacket continuous with the water jacket of the cylinder structure.

In testimony that I claim the foregoing as my invention I have signed my name this 1st day of September, 1925.

FRANK E. LONAS. 

